simple-squiggle

A restricted subset of Squiggle
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emitter.js (498B)

      1 import Emitter from 'tiny-emitter';
      2 /**
      3  * Extend given object with emitter functions `on`, `off`, `once`, `emit`
      4  * @param {Object} obj
      5  * @return {Object} obj
      6  */
      7 
      8 export function mixin(obj) {
      9   // create event emitter
     10   var emitter = new Emitter(); // bind methods to obj (we don't want to expose the emitter.e Array...)
     11 
     12   obj.on = emitter.on.bind(emitter);
     13   obj.off = emitter.off.bind(emitter);
     14   obj.once = emitter.once.bind(emitter);
     15   obj.emit = emitter.emit.bind(emitter);
     16   return obj;
     17 }